Alert archive / Iowa / Severe Thunderstorm Watches / 2012
Severe Thunderstorm Watches in Iowa, August 2012
4 severe thunderstorm watches in August 2012. An alert counts here when it covered any part of the state, so the counties below add up to more than the state. The archive of severe thunderstorm watches reaches back to 1997.
Severe Thunderstorm Watches by county
Each county as a circle sized by its count in August 2012. Tap one for its archive.
- Severe Thunderstorm Watches
- 4
- Busiest day
- August 4, 20122 severe thunderstorm watches
Over time
By day
Days in UTC, the clock the archive keeps.
The alerts
Every alert, in the order issued. Times are local, Central Time. Each opens its own page with the text, the map, the radar and the sounding.
| Issued | Product | Office | Counties | Lasted |
|---|---|---|---|---|
| Aug 3, 7:33 PM CDT | Severe Thunderstorm Watch | SPC | Buena Vista, Cherokee, Clay, Dickinson, Ida, Lyon and 5 more | 6 hr |
| Aug 4, 10:50 AM CDT | Severe Thunderstorm Watch | SPC | Appanoose, Benton, Black Hawk, Buchanan, Cedar, Clinton and 27 more | 5 hr |
| Aug 8, 2:21 PM CDT | Severe Thunderstorm Watch | SPC | Adair, Adams, Appanoose, Audubon, Boone, Carroll and 24 more | 6 hr |
| Aug 8, 4:53 PM CDT | Severe Thunderstorm Watch | SPC | Fremont, Harrison, Mills, Monona, Montgomery, Page and 2 more | 5 hr |
By county
Every county with at least one alert. A county page lists each alert that covered it.
- Appanoose County2
- Davis County2
- Jasper County2
- Mahaska County2
- Marion County2
- Marshall County2
- Monroe County2
- Poweshiek County2
- Tama County2
- Wapello County2
- Buena Vista County1
- Cherokee County1
- Clay County1
- Dickinson County1
- Ida County1
- Lyon County1
- O'Brien County1
- Osceola County1
- Plymouth County1
- Sioux County1
- Woodbury County1
- Benton County1
- Black Hawk County1
- Buchanan County1
- Cedar County1
- Clinton County1
- Delaware County1
- Des Moines County1
- Dubuque County1
- Grundy County1
- Henry County1
- Iowa County1
- Jackson County1
- Jefferson County1
- Johnson County1
- Jones County1
- Keokuk County1
- Lee County1
- Linn County1
- Louisa County1
32 more counties
- Muscatine County1
- Scott County1
- Van Buren County1
- Washington County1
- Adair County1
- Adams County1
- Audubon County1
- Boone County1
- Carroll County1
- Cass County1
- Clarke County1
- Dallas County1
- Decatur County1
- Greene County1
- Guthrie County1
- Lucas County1
- Madison County1
- Polk County1
- Ringgold County1
- Story County1
- Taylor County1
- Union County1
- Warren County1
- Wayne County1
- Fremont County1
- Harrison County1
- Mills County1
- Monona County1
- Montgomery County1
- Page County1
- Pottawattamie County1
- Shelby County1
Nearby
Alerts in force nowTornadoes on recordThe radar archive20112013
Sources
National Weather Service watches, warnings, advisories and statements from the Iowa Environmental Mesonet's VTEC archive, which reconstructs tornado, severe thunderstorm, flash flood and marine warnings back to 1986 from the NWS text archive. Storm Prediction Center watches and mesoscale discussions from SPC's archive through the Mesonet. County centers from the US Census Bureau. Warning verification from the Mesonet's Cow. Rebuilt daily.